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Finding the Third Proportional to 690,357 and 1,476,659

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Solution

The third proportional to 690,357 and 1,476,659 is: 3,158,542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,357 : 1,476,659 = 1,476,659 : x
  2. Step 2: Convert to fraction form
    690,357/1,476,659 = 1,476,659/x
  3. Step 3: Cross multiply
    690,357x = 1,476,659 × 1,476,659
  4. Step 4: Simplify right side
    690,357x = 2,180,521,802,281
  5. Step 5: Solve for x
    x = 2,180,521,802,281/690,357
  6. Step 6: Final answer
    x = 3,158,542.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.